A high-power hydrogen fuel cell with an efficient heat dissipation structure

Abstract

The present invention relates to the technical field of hydrogen fuel cells, and specifically relates to a high-power hydrogen fuel cell with an efficient heat dissipation structure, including: a limiting module, the limiting module is provided with a plurality of limiting bins capable of installing the hydrogen fuel cell, and an inlet channel and an outlet channel capable of respectively introducing and discharging the cooling medium into and out of the limiting bin; a cooling module, the cooling module is fixedly arranged on the top of the limiting module, and the output end of the cooling module is communicated with the inlet channel for inputting the cooling medium into the inlet channel; a heat dissipation module, the heat dissipation module is embedded in the limiting module, and the heat dissipation module is composed of a plurality of mutually spliced heat dissipation frames; and each heat dissipation frame is provided with an inlet and an outlet capable of introducing and discharging the cooling medium. The present invention can not only effectively converge heat energy but also perform dynamic heat dissipation according to the usage state.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen fuel cells, and particularly to a high-power hydrogen fuel cell with an efficient heat dissipation structure. Background Art

[0002] As an efficient and clean energy conversion device, hydrogen fuel cells have been widely used in new energy vehicles, backup power supplies, distributed power generation and other fields. When a high-power hydrogen fuel cell operates at high load for a long time, a large amount of heat will be generated. If the heat dissipation is not timely or the heat dissipation structure design is unreasonable, it is easy to cause the local temperature of the fuel cell stack to be too high, affecting the electrochemical reaction efficiency of the battery, and may accelerate the attenuation of the electrode catalyst, reducing the service life of the fuel cell. In addition, uneven temperature distribution may also cause imbalance in the membrane water management of the battery, resulting in a decline or even damage to the battery performance. Therefore, the design of an efficient heat dissipation structure is crucial for improving the overall performance and reliability of high-power hydrogen fuel cells.

[0003] Currently, the traditional heat dissipation methods of hydrogen fuel cells mainly include natural convection heat dissipation, liquid cooling heat dissipation and air cooling heat dissipation, etc. Among them, air cooling heat dissipation is limited by the heat dissipation efficiency and is difficult to meet the requirements of high-power applications; although liquid cooling heat dissipation has strong heat dissipation ability, it has problems such as complex system structure, increased weight and high maintenance cost. And most of the existing liquid cooling systems adopt a single flow channel or parallel flow channel structure, which is difficult to effectively optimize the coolant flow rate and temperature distribution, resulting in insufficient local cooling efficiency and still having the problem of uneven heat dissipation. Summary of the Invention

[0004] In view of the above problems, a high-power hydrogen fuel cell with an efficient heat dissipation structure is provided, by proposing a hydrogen fuel cell that not only has a large heat dissipation space and heat dissipation path but also can dynamically adjust the heat dissipation efficiency according to the usage situation, so as to solve the technical problems of poor heat dissipation effect, complex structure and single heat dissipation method of the existing hydrogen fuel cells.

[0005] To solve the problems of the existing technology, the present invention provides a high-power hydrogen fuel cell with an efficient heat dissipation structure, including: a limiting module, the limiting module is provided with a plurality of limiting bins capable of installing the hydrogen fuel cell and an inlet channel and an outlet channel capable of respectively introducing and discharging the cooling medium into and out of the limiting bins; a cooling module, the cooling module is fixedly arranged on the top of the limiting module, and the output end of the cooling module is communicated with the inlet channel for inputting the cooling medium into the inlet channel; a heat dissipation module, the heat dissipation module is embedded in the limiting module, and the heat dissipation module is composed of a plurality of mutually spliced heat dissipation frames; and each heat dissipation frame is provided with an inlet and an outlet for the cooling medium to be introduced and discharged. When a plurality of heat dissipation modules are spliced, the inlets and outlets are arranged in series.

[0006] Preferably, the heat dissipation rack includes a heat absorption chamber capable of fixing the hydrogen fuel cell and a heat insulation chamber centrally wrapped outside the heat absorption chamber; the inner diameter of the heat insulation chamber is larger than the outer diameter of the heat absorption chamber, and a rectangular cavity is formed between the heat insulation chamber and the heat absorption chamber for the transmission of the cooling medium.

[0007] Preferably, the heat dissipation rack is further provided with guiding strips capable of guiding the transmission direction of the cooling medium; the guiding strips are fixedly arranged on the outer wall of the heat absorption chamber and the distal ends are fixedly connected to the inner wall of the heat insulation chamber; multiple groups of guiding strips are arranged at equal intervals along the long side direction of the heat absorption chamber; the space of the rectangular cavity is divided into multiple chambers capable of independently guiding the cooling medium by multiple groups of guiding strips.

[0008] Preferably, multiple groups of fins are vertically and densely arranged on the outer wall of the heat absorption chamber.

[0009] Preferably, the heat insulation chamber is further provided with an upper transmission strip and a lower transmission strip capable of introducing the cooling medium into the rectangular cavity; two upper transmission strips are provided, and the two upper transmission strips are arranged in parallel relative to each other along the long side direction of the heat insulation chamber on the upper surface of the heat insulation chamber and are communicated with the rectangular cavity; a first through hole is also formed through the surface of the upper transmission strip, and the first through hole constitutes an inlet; two lower transmission strips are provided, and the two lower transmission strips are horizontally arranged relative to the two upper transmission strips on the lower surface of the heat insulation chamber and are communicated with the rectangular cavity; a second through hole is also formed through the surface of the lower transmission strip, and the second through hole constitutes an outlet.

[0010] Preferably, an upper buckling part capable of limiting and correcting the splicing position between multiple heat insulation chambers and a lower buckling part horizontally and fixedly arranged relative to the upper buckling part on the lower surface of the heat insulation chamber are also fixedly arranged on the upper surface of the heat insulation chamber.

[0011] Preferably, the limiting module includes a main limiting frame, a sub-limiting frame, an upper guiding part and a lower guiding part; the main limiting frame is arranged in a cross shape, and the inlet channel is transversely and penetratingly arranged on the main limiting frame; the outlet channel is longitudinally and penetratingly arranged on the main limiting frame; multiple groups of sub-limiting frames are provided, and multiple groups of sub-limiting frames are centrally and fixedly arranged outside the main limiting frame and enclose multiple limiting chambers with the main limiting frame; third through holes and fourth through holes respectively communicated with the upper transmission strip and the lower transmission strip are also formed through the upper surface and the lower surface of the sub-limiting frame; the upper guiding part is horizontally and fixedly arranged on the upper surface of the sub-limiting frame, and the upper guiding part is used for guiding multiple groups of the third through holes to be communicated with the inlet channel; the lower guiding part is horizontally and fixedly arranged on the lower surface of the sub-limiting frame, and the lower guiding part is used for guiding multiple groups of the fourth through holes to be communicated with the outlet channel.

[0012] Preferably, the upper guiding part is a rectangular plate, and a plurality of first grooves corresponding to a plurality of third through holes are formed in the lower surface. The plurality of first grooves are connected in series and communicated with the guiding channel.

[0013] Preferably, the lower guiding part is a rectangular plate, and a plurality of second grooves corresponding to a plurality of fourth through holes are formed in the upper surface. The plurality of second grooves are connected in series and communicated with the discharging channel.

[0014] Preferably, the cooling module is composed of a transmission unit and a guiding unit capable of communicating with the output end of the transmission unit; the transmission unit is fixedly arranged on the top of the limiting module for circulating and transmitting the cooling medium; the guiding unit is fixedly arranged at the driving end of the transmission unit for guiding and transmitting the cooling medium into the guiding channel.

[0015] The beneficial effects of the present invention compared with the prior art are as follows:

[0016] 1. Through the cooperation of the heat absorption chamber, the heat insulation chamber and the fins, the present invention optimizes the heat absorption, temporary storage and conduction methods, enables the heat generated during the operation of the fuel cell to be quickly absorbed and evenly distributed in the rectangular cavity, avoids local overheating problems, and improves the overall heat dissipation efficiency.

[0017] 2. Through the cooperation of the upper guiding part and the lower guiding part, the present invention realizes the precise guiding of the cooling medium, enables it to be evenly distributed by itself after entering a plurality of limiting chambers, and realizes efficient heat exchange when passing through the heat dissipation rack. In addition, the cooling medium can quickly converge and be introduced into the discharging channel when being discharged, ensuring the stability and continuity of the cooling process and improving the overall heat exchange performance of the system.

[0018] 3. By adopting the structures of the upper buckling part and the lower buckling part, the present invention enables a plurality of heat dissipation racks to be quickly positioned and stably spliced, ensuring the modular expansion ability of the heat dissipation system. After splicing, the upper transmission strip and the lower transmission strip can be accurately docked to form a through cooling channel, ensuring the smooth flow of the cooling medium between multiple heat dissipation units, thereby enhancing the overall heat dissipation ability of the fuel cell.

[0019] 4. By dividing the interior of the rectangular cavity into a plurality of independent return cavities through a plurality of guiding strips, the present invention realizes the multi-directional and uniform distribution of the cooling medium, enables it to pass through the heat dissipation rack in a directional and high-speed manner, ensures that each working unit of the hydrogen fuel cell obtains effective heat dissipation, and avoids performance attenuation caused by excessive temperature difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional view of a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0021] Figure 2It is an exploded perspective view of a partial structure of a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0022] Figure 3 It is a side view of a high-power hydrogen fuel cell with an efficient heat dissipation structure Figure 1 .

[0023] Figure 4 It is Figure 3 a cross-sectional view taken along line A-A of

[0024] Figure 5 It is Figure 4 a partial enlarged view at position B of

[0025] Figure 6 It is a side view of a high-power hydrogen fuel cell with an efficient heat dissipation structure Figure 2 .

[0026] Figure 7 It is an exploded perspective view of a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0027] Figure 8 It is a perspective view of a partial structure of a heat dissipation module in a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0028] Figure 9 It is a side view of a heat dissipation rack in a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0029] Figure 10 It is a perspective view of a secondary limit frame in a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0030] The reference numerals in the figure are:

[0031] 1. Limit module; 11. Limit bin; 12. Inlet channel; 13. Outlet channel; 14. Main limit frame; 15. Secondary limit frame; 151. Third through hole; 152. Fourth through hole; 16. Upper guiding part; 161. First groove; 162. First pipeline; 163. Second pipeline; 17. Lower guiding part; 171. Second groove;

[0032] 2. Cooling module; 21. Transmission unit; 22. Guiding unit;

[0033] 3. Heat dissipation module; 31. Heat dissipation rack; 311. Inlet port; 312. Outlet port; 32. Heat absorption bin; 321. Fins; 33. Heat insulation bin; 331. Upper transmission strip; 332. Lower transmission strip; 333. Upper fastening part; 334. Lower fastening part; 34. Guiding strip. Detailed implementation manners

[0034] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] See also Figures 1 to 10 As shown: A high-power hydrogen fuel cell with an efficient heat dissipation structure, comprising: a limiting module 1, the limiting module 1 is provided with a plurality of limiting bins 11 capable of installing hydrogen fuel cells and an inlet channel 12 and an outlet channel 13 capable of respectively introducing and exporting a cooling medium into and out of the limiting bins 11; a cooling module 2, the cooling module 2 is fixedly arranged on the top of the limiting module 1, and the output end of the cooling module 2 is connected to the inlet channel 12 for inputting a cooling medium into the inlet channel 12; a heat dissipation module 3, the heat dissipation module 3 is embeddedly installed in the limiting module 1, the heat dissipation module 3 is composed of a plurality of heat dissipation frames 31 spliced ​​with each other; and each heat dissipation frame 31 is provided with an inlet port 311 and an outlet port 312 capable of introducing and exporting a cooling medium, and when a plurality of heat dissipation modules 3 are spliced, the inlet port 311 and the outlet port 312 are arranged in series.

[0036] When it is necessary to dissipate heat for the hydrogen fuel cell during use, firstly connect an external power supply to drive the cooling module 2 to operate, and the cooling module 2 starts to deliver cooling medium to the heat dissipation module 3, and the transmission speed and medium temperature of the cooling medium can be dynamically adjusted according to the current temperature of the hydrogen fuel cell; similarly, by real-time monitoring the temperature of the hydrogen fuel cell and the cooling medium temperature finally derived, the transmission speed and cooling temperature of the cooling medium can also be dynamically adjusted according to the detection results; and by performing temperature detection on the cooling medium finally derived, the cooling efficiency and cooling effect of the cooling medium on the hydrogen fuel cell can also be intuitively fed back. When the cooling medium is transmitted toward the heat dissipation module 3 via the cooling module 2, it is first introduced into the corresponding limit bin 11 along the introduction channel 12 of the limit bin 1, and after passing through the limit bin 11, it enters the heat dissipation frame 31 embedded in the limit bin 11. Subsequently, the cooling medium is evenly distributed to the inside of the heat dissipation frame 31 through the introduction port 311 provided on the heat dissipation frame 31, and fully contacts the hydrogen fuel cell components fixedly installed therein, so as to take away the heat generated during the operation of the hydrogen fuel cell, thereby achieving efficient heat dissipation and maintaining the stable operation of the hydrogen fuel cell.

[0037] During actual use, the flow path of the cooling medium is composed of multiple groups of heat dissipation racks 31 connected in series. The cooling stroke of the inlet 311 is precisely controlled according to the quantity and arrangement of the heat dissipation racks 31 to optimize the cooling effect. After the cooling medium absorbs the heat of the hydrogen fuel cell, it is exported through the outlet 312 in the heat dissipation rack 31 and finally enters the export channel 13 of the limit module 1, realizing the cyclic recovery and reuse of the cooling medium. Through this cyclic conduction method, the cooling medium can continuously flow through the heat dissipation system, ensuring that the hydrogen fuel cell remains within a stable temperature range for a long time, effectively preventing overheating, and improving the working efficiency and service life of the fuel hydrogen fuel cell.

[0038] By optimizing the conduction path of the cooling medium, the cooling medium can enter the heat dissipation rack 31 step by step and efficiently carry away heat during the process of flowing through the hydrogen fuel cell assembly, thereby achieving precise heat dissipation. The import channel 12 and the export channel 13 of the limit module 1 are combined to ensure that the cooling medium can flow continuously in a cycle, avoiding the phenomena of local overheating or uneven cooling, and improving the heat dissipation efficiency of the hydrogen fuel cell. At the same time, this structure can effectively control the flow direction and rate of the cooling medium, optimize the overall performance of the heat dissipation system, extend the service life of the hydrogen fuel cell, and enhance the stability and reliability of the hydrogen fuel cell under high load conditions.

[0039] See Figure 9 As shown: The heat dissipation rack 31 includes a heat absorption chamber 32 that can limit and fix the hydrogen fuel cell and a heat insulation chamber 33 that is centrally wrapped outside the heat absorption chamber 32; the inner diameter of the heat insulation chamber 33 is larger than the outer diameter of the heat absorption chamber 32, and a rectangular cavity is formed between the heat insulation chamber 33 and the heat absorption chamber 32 for the transmission of the cooling medium.

[0040] Both the heat absorption chamber 32 and the heat insulation chamber 33 are hollow rectangular shells with openings at both ends; the heat absorption chamber 32 is arranged to match the outer diameter of the hydrogen fuel cell for limiting and fixedly installing the hydrogen fuel cell.

[0041] When the hydrogen fuel cell generates heat during continuous operation, the heat is first absorbed in real time by the heat absorption chamber 32 and quickly introduced into the rectangular cavity for temporary storage. The rectangular cavity serves as an intermediate heat buffer zone, enabling the heat to be evenly distributed inside and avoiding local overheating. When heat dissipation of the hydrogen fuel cell is required, the cooling system is activated, and the cooling medium is precisely introduced into the interior of the rectangular cavity through the flow channel and comes into full contact with the thermal energy stored therein. At this time, the heat temporarily stored in the rectangular cavity is efficiently conducted under the action of the cooling medium and carried away together with the flowing cooling medium, realizing rapid heat dissipation and ensuring that the hydrogen fuel cell maintains a stable temperature during high-load operation.

[0042] See Figure 8 and Figure 9As shown: the heat dissipation frame 31 is also provided with a guide bar 34 capable of guiding the transmission direction of the cooling medium; the guide bar 34 is fixedly arranged on the outer wall of the heat absorbing chamber 32 and the far end is fixedly connected to the inner wall of the heat insulating chamber 33; a plurality of guide bars 34 are equidistantly arranged along the long side direction of the heat absorbing chamber 32; the space of the rectangular cavity is divided into a plurality of chambers capable of independently guiding the cooling medium by the plurality of guide bars 34.

[0043] By setting a plurality of guide bars 34 arranged along the long side direction of the heat absorbing chamber 32, the internal space of the rectangular cavity is divided into a plurality of independent chambers, each of which can guide the cooling medium individually, so that a controlled flow path is formed in the rectangular cavity. After the cooling medium enters the rectangular cavity, it flows in an orderly manner along the chamber under the action of the guide bars 34, passes through the heat dissipation frame 31 in a directional and high-speed manner, and performs efficient heat exchange with the battery assembly. Not only does it optimize the flow trajectory of the cooling medium, avoiding turbulence or retention of the cooling medium in the cavity, but it also improves the heat exchange efficiency of the cooling medium, so that it can take away the heat generated by the battery more quickly and evenly, thereby ensuring that the battery maintains a stable operating temperature when operating at high power.

[0044] See also Figure 5 As shown, the outer wall of the heat absorbing chamber 32 is also vertically and densely provided with multiple groups of fins 321.

[0045] A plurality of groups of fins 321 with high thermal conductivity are vertically and densely arranged on the outer wall of the heat absorbing bin 32. These fins 321 can significantly increase the heat dissipation area of ​​the heat absorbing bin 32, thereby improving the absorption efficiency of the heat generated during the operation of the fuel cell. When the fuel cell releases heat energy, the fins 321 first quickly capture the heat on the outer wall of the heat absorbing bin 32, and through an efficient heat conduction mechanism, quickly transfer the absorbed heat to the inside of the rectangular cavity, so that the heat is evenly distributed and temporarily stored in the cavity. Subsequently, when the cooling medium flows through the rectangular cavity, it fully contacts the stored heat energy and quickly takes it away, thereby achieving efficient cooling of the fuel cell and ensuring its temperature stability under high-load operation.

[0046] See also Figure 8As shown in the figure: The heat insulation bin 33 is further provided with an upper transmission strip 331 and a lower transmission strip 332 capable of introducing a cooling medium into the rectangular cavity; there are two upper transmission strips 331, and the two upper transmission strips 331 are arranged relatively parallel along the long side direction of the heat insulation bin 33 on the upper surface of the heat insulation bin 33 and are communicated with the rectangular cavity; a first through hole is also formed through the surface of the upper transmission strip 331, and this first through hole constitutes an inlet 311; there are two lower transmission strips 332, and the two lower transmission strips 332 are horizontally arranged relative to the two upper transmission strips 331 on the lower surface of the heat insulation bin 33 and are communicated with the rectangular cavity; a second through hole is also formed through the surface of the lower transmission strip 332, and this second through hole constitutes an outlet 312.

[0047] The upper transmission strip 331 is used to uniformly transport the cooling medium to multiple groups of chambers synchronously to ensure efficient heat dissipation of the hydrogen fuel cell. When the cooling medium is output by the cooling module 2 and transmitted through the limiting module 1, and then introduced toward the heat dissipation rack 31 through the inlet channel 12, at this time, the cooling medium first enters the upper transmission strip 331. And the cooling medium is uniformly guided and transmitted to multiple groups of chambers through the upper transmission strip 331. Through this fluid distribution mechanism, the cooling medium can fully cover the heat dissipation area, improve the heat exchange efficiency, and minimize the local temperature gradient to ensure that the fuel cell maintains a stable working temperature during long-term operation.

[0048] See Figure 9 As shown in the figure: An upper buckling part 333 capable of limiting and correcting the splicing position between multiple heat insulation bins 33 is fixedly arranged on the upper surface of the heat insulation bin 33, and a lower buckling part 334 horizontally fixed relative to the upper buckling part 333 is arranged on the lower surface of the heat insulation bin 33.

[0049] The upper buckling part 333 is a convex strip fixedly arranged parallel to the long side direction of the heat insulation bin 33 on the upper surface of the heat insulation bin 33, and the lower buckling part 334 is a concave strip fixedly arranged parallel to the long side direction of the heat insulation bin 33 on the lower surface of the heat insulation bin 33. When splicing and stacking multiple heat dissipation racks 31 loaded with hydrogen fuel cells in sequence according to the use requirements, the convex strip on the upper surface of the heat insulation bin 33 cooperates with the concave strip on the lower surface, and the quick positioning of multiple groups of heat dissipation racks 31 can be accurately realized to ensure the installation accuracy and angle consistency during the splicing process. At the same time, when multiple groups of heat dissipation racks 31 are stacked and spliced in sequence, the upper transmission strip 331 and the lower transmission strip 332 fixedly installed on the upper surface and the lower surface of the heat insulation bin 33 will also be correspondingly butted, thereby forming a complete and continuous cooling channel, so that the rectangular cavities inside the heat dissipation racks 31 can be connected in series. Through this design, the cooling medium can flow smoothly between multiple mutually spliced heat dissipation racks 31 and continuously perform heat exchange, thereby improving the overall heat dissipation efficiency.

[0050] SeeFigure 7 and Figure 10 As shown in Figure 10 , the limit module 1 includes a main limit frame 14, a secondary limit frame 15, an upper guiding portion 16, and a lower guiding portion 17; the main limit frame 14 is arranged in a cross shape, and the introduction channel 12 is horizontally and penetratingly opened on the main limit frame 14; the export channel 13 is vertically and penetratingly opened on the main limit frame 14; multiple groups of secondary limit frames 15 are provided, and multiple groups of secondary limit frames 15 are centrally and fixedly arranged outside the main limit frame 14 and enclose multiple groups of limit bins 11 with the main limit frame 14; through holes 151 and 152 that communicate with the upper transmission strip 331 and the lower transmission strip 332 respectively are respectively and penetratingly opened on the upper surface and the lower surface of the secondary limit frame 15; the upper guiding portion 16 is horizontally and fixedly arranged on the upper surface of the secondary limit frame 15, and the upper guiding portion 16 is used to guide multiple groups of the through holes 151 to communicate with the introduction channel 12; the lower guiding portion 17 is horizontally and fixedly arranged on the lower surface of the secondary limit frame 15, and the lower guiding portion 17 is used to guide multiple groups of the through holes 152 to communicate with the export channel 13.

[0051] When the cooling medium is transmitted into the limit module 1 through the cooling module 2, to ensure that the cooling medium can be evenly and synchronously transported to multiple groups of limit bins 11 to achieve efficient heat dissipation for multiple groups of spliced heat dissipation frames 31, when the cooling medium flows through and is transmitted to the introduction channel 12, under the action of the upper guiding portion 16, its flow direction is precisely controlled, so that the cooling medium can be synchronously communicated to multiple groups of limit bins 11 and evenly distributed into each limit bin 11 through the through holes 151, thereby ensuring that the heat dissipation frames 31 in the limit bins 11 can fully perform heat exchange and achieve efficient cooling. When the cooling medium carrying heat completes heat exchange, it flows out through the lower transmission strip 332. At this time, the cooling medium is precisely guided into the export channel 13 under the action of the lower guiding portion 17 and is finally discharged into the circulation loop of the system, realizing the continuous cyclic transmission of the cooling medium, thereby ensuring the temperature stability of the fuel cell during long-term operation.

[0052] See Figure 7 As shown in Figure 7 , the upper guiding portion 16 is a rectangular plate, and multiple first grooves 161 corresponding to multiple groups of through holes 151 one by one are opened on the lower surface. Multiple first grooves 161 are connected in series and communicate with the introduction channel 12.

[0053] On the upper surface of the upper guiding portion 16, a first pipeline 162 and a second pipeline 163 that can respectively introduce the cooling medium towards the introduction channel 12 and the export channel 13 are also vertically provided.

[0054] Since the lower surface of the upper guiding part 16 is provided with multiple groups of first grooves 161, and the multiple groups of first grooves 161 are arranged in one-to-one correspondence with the multiple groups of third through holes 151 and are connected in series with each other to form a continuous diversion channel, which is communicated with the introduction channel 12. Based on this, when the cooling module 2 conveys the cooling medium to the introduction channel 12 through the first pipeline 162, the cooling medium will be evenly divided and respectively introduced into the multiple groups of limiting bins 11 under the guiding action of the multiple groups of first grooves 161 provided on the lower surface of the upper guiding part 16. After the cooling medium enters the limiting bin 11, it can accurately flow to the inlet 311 of the heat dissipation rack 31 and perform efficient heat exchange with the hydrogen fuel cell assembly inside the heat dissipation rack 31, so as to realize the stable heat dissipation of the fuel cell, ensure that it maintains a reasonable temperature during operation, and improve the overall heat dissipation efficiency of the system.

[0055] See Figure 2 As shown: The lower guiding part 17 is a rectangular plate and the upper surface is provided with multiple groups of second grooves 171 that are arranged in one-to-one correspondence with the multiple groups of fourth through holes 152, and the multiple groups of second grooves 171 are connected in series and communicated with the export channel 13.

[0056] Since the lower surface of the lower guiding part 17 is provided with multiple groups of second grooves 171, and the multiple groups of second grooves 171 are arranged in one-to-one correspondence with the multiple groups of fourth through holes 152 and are connected in series with each other to form a continuous diversion channel, and at the same time are communicated with the export channel 13. Based on this, when the cooling medium carrying heat is exported through the outlet 312 of the heat dissipation rack 31, it will quickly converge to the export channel 13 under the guiding action of the lower guiding part 17, avoiding the disorderly flow or retention of the cooling medium, so that the heat can be efficiently transferred and discharged in time. Finally, the cooling medium carrying heat is discharged through the export channel 13 and enters the circulating cooling system to realize the continuous circulating transmission of the cooling medium, ensuring the heat dissipation efficiency and temperature stability of the hydrogen fuel cell.

[0057] See Figure 1 and Figure 4 As shown: The cooling module 2 is composed of a transmission unit 21 and a guiding unit 22 that can be communicated with the output end of the transmission unit 21; the transmission unit 21 is fixedly arranged on the top of the limiting module 1 for circulating transmission of the cooling medium; the guiding unit 22 is fixedly arranged at the driving end of the transmission unit 21 for guiding and transmitting the cooling medium into the introduction channel 12.

[0058] The transmission unit 21 is specifically a circulation pump, and the guiding unit 22 is specifically a transmission pipeline, both of which are prior arts and will not be elaborated here. Only schematic diagrams are shown in the figures. There are two circulation pumps. One is connected to the first pipeline 162 to drive the cooling medium into the introduction channel 12, thereby achieving efficient cooling of the battery. The other circulation pump is connected to the second pipeline 163 to drive the cooling medium carrying heat in the export channel 13, so as to quickly export it.

[0059] When it is necessary to transport the cooling medium to the heat dissipation module 3 to efficiently dissipate heat from the hydrogen fuel cell, an external power supply is first connected to drive the operation of the transmission unit 21. After the transmission unit 21 is started, the cooling medium is sucked. The cooling medium can be a low-temperature gas source or a normal-temperature water source, which is selected according to specific heat dissipation requirements. Subsequently, under the action of the transmission unit 21, the cooling medium is directionally transported through the guiding unit 22 and accurately introduced into the heat dissipation rack 31 along the preset flow path. After the cooling medium enters the heat dissipation rack 31, it fully exchanges heat with the hydrogen fuel cell assembly fixedly installed inside, effectively taking away the heat generated during the operation of the hydrogen fuel cell, thereby reducing the temperature of the hydrogen fuel cell and maintaining its stable working state.

[0060] The present invention can not only effectively converge heat energy but also perform dynamic heat dissipation according to the usage state.

[0061] The above embodiments only represent one or several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A high-power hydrogen fuel cell with an efficient heat dissipation structure, characterized in that, Comprising: A limit module, the limit module is provided with multiple groups of limit bins capable of installing a hydrogen fuel cell, and an inlet channel and an outlet channel through which a cooling medium can be respectively introduced into and discharged from the limit bin; A cooling module, the cooling module is fixedly arranged on the top of the limit module, and the output end of the cooling module is communicated with the inlet channel for inputting a cooling medium into the inlet channel; A heat dissipation module, the heat dissipation module is embedded in the limit module, and the heat dissipation module is composed of multiple groups of spliced heat dissipation frames; and each heat dissipation frame is provided with an inlet and an outlet through which a cooling medium can be introduced and discharged. When multiple groups of heat dissipation modules are spliced, the inlets and outlets are arranged in series; The heat dissipation frame includes a heat absorption bin capable of fixing the hydrogen fuel cell and a heat insulation bin centrally wrapped outside the heat absorption bin; the inner diameter of the heat insulation bin is larger than the outer diameter of the heat absorption bin, and a rectangular cavity is formed between the heat insulation bin and the heat absorption bin for transmitting the cooling medium.

2. The high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 1, characterized in that, The heat dissipation frame is also provided with a guiding strip capable of guiding the transmission direction of the cooling medium; The guiding strip is fixedly arranged on the outer wall of the heat absorption bin and the distal end is fixedly connected to the inner wall of the heat insulation bin; multiple groups of guiding strips are equidistantly arranged along the long side direction of the heat absorption bin; The space of the rectangular cavity is divided into multiple chambers capable of independently guiding the cooling medium by multiple groups of guiding strips.

3. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 1, characterized in that, Multiple groups of fins are also vertically and densely arranged on the outer wall of the heat absorption bin.

4. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 1, characterized in that, The heat insulation bin is also provided with an upper transmission row strip and a lower transmission row strip capable of introducing the cooling medium into the rectangular cavity; There are two upper transmission row strips, and the two upper transmission row strips are relatively and parallelly arranged on the upper surface of the heat insulation bin along the long side direction of the heat insulation bin and are communicated with the rectangular cavity; a first through hole is also formed through the surface of the upper transmission row strip, and the first through hole constitutes the inlet; There are two lower transmission row strips, and the two lower transmission row strips are horizontally arranged relative to the two upper transmission row strips on the lower surface of the heat insulation bin and are communicated with the rectangular cavity; a second through hole is also formed through the surface of the lower transmission row strip, and the second through hole constitutes the outlet.

5. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 1, characterized in that, An upper buckling part capable of limiting and correcting the splicing position between multiple groups of heat insulation bins is also fixedly arranged on the upper surface of the heat insulation bin, and a lower buckling part horizontally fixed relative to the upper buckling part is arranged on the lower surface of the heat insulation bin.

6. The high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 4, wherein, The limit module includes a main limit frame, a sub-limit frame, an upper guiding part and a lower guiding part; The main limit frame is arranged in a cross shape, the inlet channel is horizontally penetrated through the main limit frame; the outlet channel is longitudinally penetrated through the main limit frame; Multiple groups of sub-limit frames are provided, and multiple groups of sub-limit frames are centrally and fixedly arranged outside the main limit frame and enclose multiple groups of limit bins with the main limit frame; third through holes and fourth through holes respectively communicated with the upper transmission row strip and the lower transmission row strip are also respectively formed through the upper surface and the lower surface of the sub-limit frame; The upper guiding part is horizontally fixedly arranged on the upper surface of the sub-limit frame, and the upper guiding part is used for guiding multiple groups of the third through holes to be communicated with the inlet channel; The lower guiding part is horizontally and fixedly arranged on the lower surface of the auxiliary limiting frame, and the lower guiding part is used for guiding a plurality of groups of the fourth through holes to be communicated with the export channel.

7. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 6, characterized in that, The upper guiding part is a rectangular plate, and a plurality of first grooves corresponding to the plurality of third through holes one by one are formed in the lower surface. The plurality of first grooves are connected in series and communicated with the import channel.

8. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 7, characterized in that, The lower guiding part is a rectangular plate, and a plurality of second grooves corresponding to the plurality of fourth through holes one by one are formed in the upper surface. The plurality of second grooves are connected in series and communicated with the export channel.

9. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 1, characterized in that, The cooling module is composed of a transmission unit and a guiding unit capable of being communicated with the output end of the transmission unit; The transmission unit is fixedly arranged on the top of the limiting module and is used for circularly transmitting the cooling medium; The guiding unit is fixedly arranged at the driving end of the transmission unit and is used for guiding and transmitting the cooling medium into the import channel.

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